The skies over Florida were filled with the roar of rocket engines on March 22nd as the Orbital ATK OA-6 mission was lifted to orbit atop a United Launch Alliance (ULA) Atlas V launch vehicle. Carrying over 7,000 pounds of supplies, consumables and experiments to the International Space Station (ISS), OA-6 was the second joint mission between ULA and Orbital ATK to resupply the ISS.